If you have emails associated with your domain name and you would like to keep it with your email provider, it is recommended that you change the A Record on your domain name instead of changing the Name Servers.
Just contact your Domain vendor and ask them to point the host name www and @ to this IP Address: 184.108.40.206
This change can also be done by yourself on the back-end of your domain vendor site.
Just look for something similar to the image below and change the www IP Address to:220.127.116.11 Remember, each vendor has their own control panel so yours might look a bit different from our screenshot.
-These changes may take 4-6 hours to propagate through the online. So you need to be a little patient.
-In order to go live your WebsiteBox website also needs to be publish your website.
Sample Screenshot from GoDaddy.com:
Sample Screenshot from Enom.com: